setBigTimeout
evanhahn.com
setBigTimeout
1–10 of 129 posts
Re: setBigTimeout
#2Got hit with this one a few months ago.
Re: setBigTimeout
#3What is the use-case for such a function?
Re: setBigTimeout
#4Got hit with this one a few months ago.
Just out of curiosity, what was the use case for a really long timeout? Feels like most if not all long timeouts would be best served with some sort of "job" you could persist, rather than leaving it in the event queue.
Re: setBigTimeout
#5What is the use-case for such a function?
Make a joke and have something to write a blogpost about, while letting your readers learn something new.
Re: setBigTimeout
#6Got hit with this one a few months ago.
this is the thing with JS and TS - the types and stuff, it's all good until you realise that all integers are basically int 52 (represented as float 64, with 52 bits for the fraction).
Yes, it's nice and flexible - but also introduces some dangerous subtle bugs.
Re: setBigTimeout
#7If we're pedantic, this doesn't actually do what's advertised, this would be waiting X timeouts worth of event cycles rather than just the one for a true Big timeout, assuming the precision matters when you're stalling a function for 40 days.
Re: setBigTimeout
#8What is the use-case for such a function?
Off the top of my head, a cron scheduler for a server that reads from a database and sets a timeout upon boot. Every time the server is reboot the timeouts are reinitialized (fail safe in case of downtime). If upon boot there’s a timeout > 25 days it’ll get executed immediately which is not the behavior you want.
Re: setBigTimeout
#9If we're pedantic, this doesn't actually do what's advertised, this would be waiting X timeouts worth of event cycles rather than just the one for a true Big timeout, assuming the precision matters when you're stalling a function for 40 days.
I haven’t looked at the code but it’s fairly likely the author considered this? eg the new timeout is set based on the delta of Date.now() instead of just subtracting the time from the previous timeout.
Re: setBigTimeout
#10The default behaviour of setTimeout seems problematic. Could be used for an exploit, because code like this might not work as expected:
const attackerControlled = ...;
if (attackerControlled {
console.log("Surely at least 1min has passed!");
}, attackerControlled);